js 文字排序

const sortArr = (data, order, key='') => {
  data.sort((a, b) => {
    let idx1 = a[key] ? order.indexOf(a[key].substr(0,1))>=0? order.indexOf(a[key].substr(0,1)) : order.length : -1;
    let idx2 = b[key] ? order.indexOf(b[key].substr(0,1))>=0? order.indexOf(b[key].substr(0,1)) : order.length : -1;
    return idx1 - idx2;
  });
  return data;
}
let data = [
    { name: '你好',value: 1 ,id: 123},
    { name: '好你',value: 2 ,id: 125}
]
let aa = sortArr(data,['好','你'],'name')
console.log(aa)